Clutch Masters 13-18 Ford Focus ST Hydraulic Clutch Line - SL-07212

The Clutch Masters SL-07212 Hydraulic Clutch Line is a stainless steel upgrade engineered as a direct-fit replacement for the factory clutch line on the Ford Focus ST (2013–2018) and Ford Focus RS (2016–2018). If you've noticed a spongy or inconsistent clutch pedal — especially during spirited driving or track sessions — the stock rubber line is likely the culprit. This Clutch Masters upgrade replaces the line running from the OEM master cylinder to the OEM slave cylinder, restoring sharp, predictable pedal feel.

Key Features & Benefits

• Stainless Steel Construction: High-strength stainless steel resists expansion under hydraulic pressure, unlike factory rubber lines that can balloon and create a vague, spongy pedal sensation.
• Improved Clutch Pedal Responsiveness: By maintaining consistent hydraulic pressure, the line delivers more precise clutch engagement — a noticeable improvement for both street and track driving.
• Reduced Hydraulic Expansion: The reinforced design keeps fluid pressure consistent throughout the line, eliminating the inconsistent engagement that degraded stock lines produce over time.
• Direct-Fit Replacement: Designed as a drop-in replacement from the OEM master to the OEM slave, so no custom fabrication or adapters are needed.
• Durable & Wear-Resistant: Built to withstand the demands of high-performance and track driving without degradation over time.
• Real-World Proven: Focus ST owners report this line completely replaces everything from the bleeder tee to the firewall — a commonly needed repair when dealing with clutch line leaks behind the battery box area.

Specifications

• Brand: Clutch Masters
• Part Number (MPN): SL-07212
• SKU: CLMSL-07212
• Material: Stainless steel
• Application: OEM master cylinder to OEM slave cylinder (hydraulic clutch circuit)
• Shipping Weight: 3.0 lbs.
• Package Dimensions: 16" W × 16" H × 4" L
• Condition: New

Fitment

The Clutch Masters SL-07212 is confirmed to fit the following vehicles:

• Ford Focus ST: 2013–2017 — 2.0L 6-Speed
• Ford Focus RS: 2016–2018 — 2.3L Turbo AWD 6-Speed
• Ford Focus (additional trims): 2013–2018 S, SE, Titanium, and SEL (2017–2018) as listed in fitment data

Note: The manufacturer's detailed spec sheet lists Focus ST fitment specifically through 2017 for the 2.0L 6-Speed variant. Verify your specific model year, engine, and transmission configuration before ordering. The Focus Electric is listed in retailer fitment data — contact our team to confirm applicability for your specific build if you have any doubt.

Why Upgrade Your Focus ST or RS Clutch Line?

The factory hydraulic clutch lines on the Focus ST and RS are constructed from rubber, which is prone to expansion under pressure over time. This expansion absorbs hydraulic force that should be transmitted directly to the slave cylinder, resulting in a soft or inconsistent pedal. For drivers who push their ST or RS hard — whether autocrossing, track days, or just aggressive street driving — this translates to imprecise gear changes and clutch modulation. The Clutch Masters stainless steel line solves this by eliminating that flex point entirely. It's also a go-to repair part when the OEM line develops leaks, a known issue reported by Focus ST owners particularly in the area behind the battery box.

Why Buy from ThreePiece.us

• Free Shipping: Every order ships free — no minimum required.
• Affirm Financing: Break your purchase into manageable payments with Affirm financing, available at checkout.
• Expert Fitment Support: Our team has served 10,000+ customers and can help verify this part is right for your specific Focus ST or RS build. Reach us by phone at 813-535-5801 or email at [email protected].
• Price Match Guarantee: Found it cheaper elsewhere? We'll match it.
• In Stock & Ready to Ship: This is a regularly stocked product — no long lead times.

Frequently Asked Questions

Does this clutch line fit both the Focus ST and Focus RS?

Yes. The Clutch Masters SL-07212 is confirmed to fit the Ford Focus ST (2013–2018) and the Ford Focus RS (2016–2018). The manufacturer lists the ST application as the 2.0L 6-Speed and the RS as the 2.3L Turbo AWD 6-Speed.

What does this line replace exactly — is it a full replacement?

This line runs from the OEM master cylinder to the OEM slave cylinder. Based on owner feedback, it replaces the section from the bleeder tee to the firewall — covering the most failure-prone portion of the hydraulic clutch circuit on these vehicles.

Is this a direct bolt-on installation?

Yes, it is designed as a direct-fit replacement for the stock clutch line. No custom fabrication, cutting, or adapters are required for a proper installation on the supported Focus ST and RS applications.

What's the lead time for this product?

This is a regularly stocked item at ThreePiece.us and is ready to ship. The manufacturer also indicates good in-stock availability with a typical 1–3 business day fulfillment window.